| File | Date | Type | Size | User |
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Jan 20, 2016 8:51 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.03 MB |  yongchen |
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Jan 15, 2014 7:42 am | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.00 MB | yongchen |